Mower.



No. 784,663. PATENTED MAR. 14, 1905;

S. K. DENNIS.

MOWER. APPLICATION FILED JAN. 24, 1902.

3 SHEETS-SHEET l.

PATENTED MAR. 14, 1905.

K... DENNIS.

MOWER. APPLICATION FILED JAN. 24, 1902.

3 SHEETS-SHEET 2.

m i ww H Y (NH. 3 RV 1 g g F PATENTBD MAR. 14, 1905.

S. K. DENNIS.

MOWER.

APPLIOATION FILED JAN. 24, 1902.

3 SHEETS-SHEET 3.

UNITED STATES Patented March 14, 1905.

PATENT OEEicE.

SAMUEL K. DENN IS, OF CHICAGO, ILLINOIS, ASSIGNOR, BY MESNE ASSIGNMENTS,TO INTERNATIONAL HARVESTER COMPANY, OF CHICAGO, ILLINOIS, A CORPORATIONOF NEW JERSEY.

MOWER.

SPECIFICATION forming part of Letters Patent No. 784,663, dated March14, 1905.

' Application filed January 24,1902. Serial No. 91,094.

To It who/r1, it 'm/rt l con/(107 17 Be it known that I, SAMUEL K.DENNIS, a citizen of the United States, residing at Chicago, in thecounty of Cook and State of Illinois, have invented certain new anduseful Improvemen ts in Mowers, of which the following is aspecification.

My invention is concerned with certain new and useful improvements inthe location for the compensating spring and the connections betweensaid spring and the cutting mechanism with which it is adapted tocooperate.

My invention is further concerned with certain new and usefulimprovements in the connections between the lifting-crank and thelinger-bar, said connections being. specially adapted for use in theso-called vertical-lift mowing-machines.

My invention is finally concerned with certain improvements in thebearings between the yoke on the coupling-frame and the shoe on thefinger-bar by which they can be adjusted to take up any wear that mayoccur, and thereby keep the finger-bar in alinement with the pitman-rod.

To illustrate my invention, I annex hereto three sheets of drawings, inwhich the same reference characters are used to designate identicalparts in all the figures, of which- Figure 1 is a plan view of amowing-machine having my improvements employed thereon. Fig. 2 is adetail view in side elevation and partly in section on the line A A ofFig. 1, designed more especially to show the connections between thelifting-crank and the finger-bar. Fig. 3 is a detail in front elevation,showing the yoke on the coupling-frame and the finger-bar shoe incentral longitudinal section on the line B B of Fig. 1. Fig. 4

is an end elevation of the combined collar and fulcrum on the outer endof the main bar of the coupling-frame. Fig. 5 is a detail showing thefront bearing between the couplingframe yoke and the finger-bar shoe inrear elevation. Fig. 6 is a vertical section through the same bearing onthe line C C of Fig. 5,

and Fig. 7 is a front elevation of the same bearing.

Pivoted to the tubular extension 10 of the main frame 11, which servesas a bearing for the pitman-shaft12, is a collar 13, into which isscrewed or otherwise secured the end of the main bar 14 of thecouplingframe. The th rustbar 15 of the coupling-frame is, as best shownin Fig. 1, pivoted to the lug 16, projecting downward from the underside of the main frame, and hasits otherend screwed or otherwise securedin the socket 17, projecting rearwardly and diagonally from the collar18, which is secured at the inner end of the bearing portion 19 of themain bar 14: by any convenient means, such as the bolt 20 passingthrough the collar and the main bar. The bearing-sleeve 21 of thecoupling-frame yoke is pivoted on the bearing portion 19 of the main barand is held in position by the collar 18 at its inner end and the collar22, which is secured to the outer end of the main bar conveniently bythe pin 23 passing through an aperture in the end of the main bar andhav-.

ing its end held in the recesses 24 in the face of the collar 22.

Secured to and preferably formed integrally with the collar 18 is an eye25, projecting inwardly therefrom and adapted to have hooked therein theouter end of the coiled compen sating spring 26, the other end of whichis fastened to a chain 27, which passes over a sheave 28, mounted in thecars 29, projecting upward from the extension of the collar 13, intowhich the inner end of the main bar 1& is screwed. \Vith thisconstruction it will be seen that the compensating spring extends alongthe main bar substantially parallel with the upper surface thereof. Thechain 27 is connected at its upper end to the link 31,

which has its upper end in turn hooked into one of the recesses32,formed in the u p wardlyprojecting arm 33 of the lever 23%, pivotedin the bearing 35, secured upon thetongue 36 just above the main bar lt. The plurality of apertures 32 are employed, so that an adjustment maybe made for the leverage which it is desired to give the spring upon thefingerbar, which is varied with the different lengths and weights of thefinger-bars.

The substantially horizontal arm 37 of the'bell-crank lever 34 has seenred to its lower end the link 38, which is connected to the link 39, theconnection of one of these links conveniently forming a stop 40, withwhich the eye 41 on the end of the arm 42 of the lifting-crankcooperates. VVi-th this connection it will be apparent that the compensatingspring will operate on the lingerbar to balance the sameindependently of the lifting-crank, but when the lifting-crank isthrownrearwardly, as shown in the dottedline position of Fig. 2, it willcooperate with the link 39 and the connections beyond it to raise thefinger-bar in the customary manner.

The chain 43 is connected to the lower end of the link 39 and passesbeneath the sheave 44, which is journaled in the yoke-bearing collar 45,which is pivoted upon the bearing portion 19 between the collar 18 andthe sleeve 21, so as to permit the sheave 44 to swinginto the differentplanes occupied by the chain 43 as the linger-bar is raised and lowered.The outer end of the chain 43 is pivotally connected to the gag-lever46, which in turn is pivotally connected to the bearing-lug 47 of thefulcrum-link 48, which in turn is pivotally mounted between the ears 49,conveniently formed integral with and projecting upward from the collar22. Pivotally connected to the outer end of the fulcrum-link 48 is thelink 50, which is pivotally connected at its lower end to the lug51,secured to the outer end of the finger-bar shoe 52. VA fulcrum-lug53is preferably formed on the fulcrum-link 48 in a position so that thegag-lever 46 rests on said fulcrum-lug 53 when the linger-bar is down.As the tension is applied to the chain 43 either by the compensatingspring 26 or the lifting-crank it will be apparent that the pull of thechain on the gag-lever 46 will first cause said lever to act as a leverof the lirst class to lift the linger-bar until it is raised somedistance and the lever 46 is raised from the fulcrum-lug 53, after whichsaid gag-lever operates merely as a link in the chain of connectionsbetween the chain 43 and the finger-bar.

In Figs. 5, 6, and 7 I have illustrated the details of the constructionembodying that portion of my invention by which the adjustment of thefront bearing between the couplingframe yoke and the linger-bar shoe maybe changed to take up any wear that may occur, as is customary with thisclass of devices. The front downwardly-projecting car 53 of thecoupling-frame yoke is provided with a square abutment 54, againstwhichrests the square or flattened portion 55 of the head 56 of the pin57, which passes through the car 53. Of course it will be understoodthat I might make the portion of the pin 57 passing through the car 53of some other cross-section than circular and have it cooperate with thecorrespondingly-shaped aperture in the car 53; but for convenience ofconstruction l pre- I l l fer to use the pin with the circularcross-section and prevent it from turning by using the flattened portionon its head, cooperating with the shoulder 54. The inn r end of the pin57 passes through the eccentric aperture 58 in the bearing-sleeve 59,which is mounted in the ear 60 of the linger-bar shoe 52. The outer endoft-he bearing-sleeve 59 is provided with the two pairs ofoppositely-disposed recesses 61, with which cooperates the cotterpin 62,passing through the end of the pin 57 to hold the bearing-sleeve 59 inany position of adjustment in which it may be placed on the pin. From aconsideration of Fig. 7 it will be seen that the bearin -sleeve 59 maybe adjusted in any one of the three positions which will vary therelative position of this bearing with regard to the rear bearing 63, sothat any desired one of the three angles of adjustment between thecoupling-frame yoke and the iinger-bar shoe that may be necessary totake up the wear may be made. By thus moving the pivotal center of therear bearing toward or from the machine it will be apparent that theouter end of the finger-bar, will be thrown correspondingly backward orforward, thus changing the angle of the fingerbar with reference to theline of the main bar of the coupling-frame.

\Vhile I have shown loose connections between the lifting-crank and thelinger-bar so that the compensating spring may operate independently ofthe lifting-crank, it will be understood that my invention isnotconlincd to such a construction, but that the compensating springmight be attached positively to the lifting-crank and still embody thatportion of my invention which is concerned with the connections betweenthe lifting-crank and the linger-bar.

l/Vhile I have shown my invention as embodied in the forms which 1 atpresent consider best adapted to carry out its purposes, it will beunderstoodthat it is capable of modifications and that I do not desireto be limited in the interpretation of the following claims, except asmay be necessitated by the state of the prior art.

What I claim as new, and desire to secure by Letters Patent of theUnited States, is-

1. In a mowing-machine, the combination with the main frame, of acoupling-frame connected thereto, a coiled spring connected at one endto said coupling-frame and extending longitudinally of the main barthereof, a flexible connection secured to the other end of said spring,a bearing about which said connection passes, the linger-bar pivoted tosaid couplingframe, and connections between said lingerbar and flexibleconnection whereby the tension of the spring tends to lift thelinger-bar.

2. In a mowing-machine, the combination with the main frame, of acoupling-frame connected thereto, a coiled spring connected at one endto said coupling-frame and extending IlO longitudinally of the main barthereof, a flexible connection secured to the other end of said spring,a sheave on the inner end of said coupling-frame about which theflexible connection passes, a bell-crank lever pivoted to the main frameand connected to said flexible connection, the finger-bar pivoted tosaid coupling-frame and connections between the finger-bar and thebell-crank lever whereby the tension of the spring tends to lift thefinger-bar.

8. In a mowing-machine, the combination with the main frame, of acoupling-frame hinged thereto, a coiled spring connected at one end tosaid coupling-frame and extending longitudinally of the main barthereof, a flexible connection secured to the other end of said spring,a bearing about which said connection passes, the finger-bar pivoted tosaid coupling-frame, connections between said fingerbar and flexibleconnections whereby the tension of the spring tends to lift thefinger-bar, and a lifting-crank cooperating with the connections securedto the finger-bar for the purpose described.

4. In a mowing-machine, the combination with the main frame, of acoupling-frame connected thereto, a coiled spring connected at one endto said coupling-frame and extending longitudinally of the main barthereof, a flexible connection secured to the other end of said spring,a sheave mounted on the inner end of the coupling-frame about which saidflexible connection passes, a bell-crank lever on the main frame towhich said flexible connection extends, a second sheave near the outerend of said coupling-frame, a flexible connection with the bell-cranklever passing beneath said sheave, the finger-bar pivoted to said frame,

and connections between said finger-bar and said second flexibleconnection whereby the tension of the spring tends to lift the fingerbar.

5. In a mowing-machine, the combination with the main frame, of acoupling-frame hinged thereto, a coiled spring connected at one end tosaid coupling-frame and extending longitudinally of the main barthereof, a chain secured to the other end of said spring, a sheavesecured near the inner end of the said coupling-frame about which saidchain passes, a bell-crank lever pivoted on the main frame to which saidchain is connected, a second sheave securedon said coupling-frame towardthe outer end thereof, a second chain passing beneath said secondsheave, links connecting said second chain with the bell-crank lever,the finger-bar pivoted to the coupling-frame, connections between saidfinger-bar and the second chain whereby the tension of the spring tendsto raise the finger-bar, a lifting-crank pivoted on the main framehaving the eye 41 through which the links connecting the second chainand the bell-crank lever pass, and a lug on said links with which saideye cooperates.

6. In a mowing-machine, the combination with themain frame, of acoupling-frame secured thereto, the collar 18 secured to the main bar ofthe coupling-frame and having the eye 25 thereon, the coiled spring 26secured to said eye 25 at one end, the chain 27 secured to the other endof said spring, the sheave 28 journaled in the bearings 29 secured atthe inner end of the main bar, the bellcrank 3 1, the link 31 connectingthe chain 27 and the bell-crank 34, the sheave 44 journaled in thebearing 45 pivoted adjacent the collar 18, the chain 43 passing beneathsaid sheave, the links connecting said chain 13. and the bell-crank 34,the finger-bar pivoted to the coupling-frame, and connections betweenthe chain L3 and the finger-bar whereby the tension of the spring 26tends to .raise the finger-bar.

7. In a mowing-machine, the combination with the main frame, of thecoupling-frame connected thereto, the finger-bar pivoted to saidcoupling-frame, a lever pivoted on the main frame, and connectionsbetween said lever and the finger-bar including the swinging linkpivotally mounted on the end of said coupling-frame, and the combinedlink and lever member, 46, pivoted thereon and cooperating therewith. Y

8. In a mowing-machine, the combination with the main frame, of thecoupling-frame connected thereto, the finger-bar pivoted to saidcoupling-frame, a lever pivoted on the main frame, and connectionsbetween said lever and finger-bar including the fulcrum-link pivotallymounted on the end of said coupling-frame, and the gag-leverpivotallymounted on said fulcrum-link and cooperating therewith.

9. In a mowing-machine, the combination with the main frame, of thecoupling-frame connected thereto, the main bar constituting a partthereof, the finger-bar pivoted to said coupling-frame, a lever pivotedon the main frame, and connections between said lever and thefinger-bar, the collar 22 secured on the outer end of the main bar andhaving a yoke and the gag-lever pivoted to the fulcrum-link andcooperating therewith.

10. In a mowing-machine, the combination with the main frame, of thecoupling-frame connected thereto, the main bar constituting a partthereof, the collars 18 and 22 secured on the drag-bar, the yokepivotally mounted on said main bar between said collars, the finger-barpivoted to said yoke, a lever pivoted on the main frame, and connectionsbetween said lever and finger-bar including the sheave 44: mountedadjacent the collar 18, the chain passing beneath said sheave, thegag-lever 46 connected to said chain and to the fulcrumlink48, thefulcrum-link as pivoted to the collar 22, and the link 50 pivoted to thefulcrum-link 48 and the finger-bar.

11. In a mowing-machine, the combination with the main frame, of thecoupling-frame connected thereto, the linger-bar pivoted to saidcouplingframe, a lever pivoted on the main frame, and connectionsbetween said lever and linger-bar including the fulcrum-link having thefulcrum-lug thereon, and the gaglever pivoted to said fulcrum-link andcooperating with said fulcrum-lug.

12. In a mowing-machine, the combination with the main frame, of thecoupling-frame connected thereto,- the main bar constituting a partthereof, the linger-bar pivoted to said coupling-frame, a lever pivotedon the main frame, a collar secured on the outer end of the main bar,and connections between said lever and linger-bar including a membersecured on said collar and. adapted to change a horizontal pull of saidconnections along the coupling=frame into a vertical lift on thelingerbar.

13. In a mowing-machine, the combination with the main frame, thecoupling-frame pivoted thereto, the main bar constituting a partthereof, the coupling-frame yoke pivotally secured on the outer end ofthe main bar, the collars 18 and 22 secured to said main bar and betweenwhich the yoke is mounted, the coiled spring 26 secured to said collar18 at one end and having the chain 27 secured to the other end, thesheave 28 secured to the inner endof the coupling-frame and about whichthe chain 27 passes, the bell-crank lever pivoted to the main frame andconnected to the chain 27 by the link 31, the collar 45, the sheave e4:mounted thereon, the chain a3 passing beneath the sheave H and connectedto the bell-crank 34, the gag-lever 46 having its inner end turnedupwardly and its outer end pivotally secured to the-fulcrum-lever 48,the fulcrum-lever4l8 having the lug 53 thereon and pivotally mounted onthe collar 22, the finger-bar pivotally mounted on the coupling-frameyoke, and the link connecting the ringer-bar with the fulcrum-lever 6L8.

14L In a mowing-machine, the combination with the main frame, of thecoupling-frame connected thereto, having a bearing thereon, thecoupling-frame yoke on said bearing, the linger-bar pivoted to saidcoupling-frame yoke, a lever pivoted on the main frame, and connectionsbetween said lever and the [inger-bar including the swinging linkpivotally mounted on said coupling-frame beyond the bearing for thecoupling-frame yoke.

15. .In a mowing-machine, the combination with the main frame, of thecoupling-frame connected thereto, the collar L43 pivotally mountedthereon, the sheave etet supported by the collar, the linger-barpivotedto said coupling-frame, a lever pivoted on the main frame, andconnections between said lever and the linger-bar including the chain &3passing beneath the sheave 44; substantially as shown and described.

in testimony whereof I affix my signature in presence of two witnesses.

SAMUEL K. DENNIS.

\Vitnesses:

J onN H. M oELRoY, HA'r'rm O. HALVOKSON.

